There's a reason for this. "Making Mexico Great Again" demands that the mostly uneducated, unskilled, alcoholic Mestizo underclass are imported to us, leaving Mexico "great" for the ethnic Spanish-Europeans in the upper and middle classes who remain.
Have you ever noticed Mexicans who look like María Inés Guerra or Canelo Álvarez aren't the one's crossing the border?
A lot of the rich white Mexican celebrities have mansions in Southern California, many live there and commute to Mexico for work.
Well, why move to the USA yourself, when you can use the mixed-race folks for colonization purposes?
Pure Spaniards, them.